package org.szx.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import org.szx.vo.ExamUserVO;

public class LoginInterceptor implements HandlerInterceptor{

	@Override
	public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, Exception arg3)
			throws Exception {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, ModelAndView arg3)
			throws Exception {
		// TODO Auto-generated method stub
		
	}

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse Response, Object arg2) throws Exception {
		// TODO Auto-generated method stub
		HttpSession session = request.getSession();
		ExamUserVO examUser = (ExamUserVO) session.getAttribute("examUser");
		if(examUser!= null){
			return true;
		}
		else{
			Response.sendRedirect(request.getContextPath()+"/login");
		}
		return false;
	}
}
